ANSWER:
When a habitat is destroyed, the carrying capacity for indigenous plants, animals, and other organisms is reduced so that populations decline, sometimes up to the level of extinction. Habitat loss is perhaps the greatest threat to organisms and biodiversity.
Answer:
The action of the shifting continental plates of Earth has important effects on the course of speciation of living organisms by reproductively isolating populations or allowing previously separated populations to interbreed..
Explanation:
The formation of geological barriers such as mountains special cause of allopatric type, these barriers cause isolation which prevents two or more groups from mating each other regularly and finally there is speciation. On the other hand the movement of continental masses for example can cause the union of islands that allows a new genetic crossing between populations.
Answer:
Normally sterilizing food using radiation does not induce radioactivity but sometimes it may change the taste, texture of the food and it may also destroy the nutrients. radiation is used to kill the harmful bacteria and to increase the shelf life. when the radiation is very energetic it alters the food structure but it does not make it radioactive. To become radioactive one has to make a nucleus unstable. ionizing radiation normally cannot do this. FDA has established maximum energy levels for radiation to prevent the treated foods from becoming radioactive. The energy levels of the rays are too low to induce radioactivity in the food. So there is no harm in consuming treated foods.
Explanation:
Answer:
kt bmjjy0c6rsyjjtrvngfyvuryrhjtrhb
Explanation:
<span>DNA
stands for deoxyribonucleic acid. The deoxy- in the DNA is a short term for
deoxyribose. The nucleic acid molecule has three parts; sugar, phosphate and a
base. The phosphate in the DNA acts as a backbone of the molecule. It is also
responsible for the DNA’s ‘double-helix’ structure. The base has four codes namely
adenine, thymine, cytosine and guanine. Adenine and thymine are base pairs
whereas cytosine and guanine are base pairs. </span><span>DNA
is a nucleic acid that contains the genetic instructions used in the
development and functioning of all known living organisms whereas the RNA is a
single-stranded chain of alternating phosphate and ribose units with the bases
adenine, guanine, cytosine, and uracil bonded to the ribose. </span>
